Mapping source and output audio
channels

Mapping the audio channels in clips determines the type and number of audio tracks in which they appear in a sequence. Also, mapping channels determines their destination channels within the master track, and therefore in the final output file. For example, if you map channels 1 and 2 in a stereo clip to the Left-Front and Right-Front channels in a 5.1-channel master track, the two source channels appear as a single 5.1-channel track when placed into a sequence. They feed the Left-Front and Right-Front channels of the master track. When the final output is played through a 5.1-channel surround sound system, the original two channels play through the Left-Front and Right-Front speakers, respectively.

Karl Soule shows how to map audio channels in Premiere Pro in this video tutorial. This video is for editors dealing with footage using split-mono tracks (voice on one track, ambient sound on another). This quick tutorial on audio channel mapping is a must-see.

By default, clip audio channels are mapped to the master track when they are captured or imported into a project. You can specify how Premiere Pro maps them by selecting a Default Track Format in the Source Channel Mapping pane of the Audio Preferences dialog box. You can also change how clip audio channels are mapped after importing them into a project.

Finally, you can specify which output channels Premiere Pro uses to monitor each audio channel. For example, you can monitor the left channel of stereo tracks through the left-front speaker of your computer speaker system. Set this default in the Audio Output Mapping Preferences dialog box.

Map source audio channels on import

You can specify how Premiere Pro automatically
maps clip audio channels to audio tracks and the Master Track on
import or capture.

In the Audio Tracks section of the Audio Preferences
dialog box, select a format from the Default Track Format menu.

Click OK.

Change the source audio channel
mapping for one or more clips

Select one or more clips containing
audio in the Project panel and choose Clip > Modify > Audio
Channels.

ملاحظة:

If you select more than one audio clip, make sure that
the track format is the same for all the selected clips.

Audio output channel mapping for a stereo track

In the Audio Channels pane of the Modify Clip dialog
box, do any of the following:

Select a format from the Channel Format list.

To enable or disable an audio channel, select or
deselect the Enable option for a source channel. When you add a
clip to a sequence, Premiere Pro adds only the enabled channels
to a Timeline panel.

To map a source channel to a different output track
or channel, drag a track or channel icon to another source channel
row. This step swaps the output channels or tracks for the two source
channels.

ملاحظة:

When you view a clip with remapped source channels
in a Timeline panel, the tracks appear in ascending order. However,
the mapping determines their associated source channels.

To map less than six source channels to the output
channels in 5.1 surround audio, drag the channel icon to another
source channel row. Alternatively, click the 5.1 Channel icon until
the source channel is mapped to the desired output channel.

Audio output channel mapping for a 5.1 track

To preview the audio in a channel, select the source
channel and click the Playback button or use the slider.

Click OK.

ملاحظة:

You cannot modify audio channels of a merged clip. They must be mono by default. However, you can still reorder and enable/disable all of the available audio channels from the component clips.

Map P2 clip audio for export to
P2

You can export audio in P2 sequences back
to their original four channels if you map clip audio channels to
5.1 channels correctly. You can export to four channels, for example,
if you want to transfer your final output file back to P2 media.
Map the channels in your P2 clips before placing them into a sequence, and
before using the File > Export To Panasonic P2 command.

ملاحظة:

If
you leave P2 clips at their default mono channel mapping, use them
in a sequence with a 5.1 master track, and export that sequence
to P2, the exported file contains audio only in the third and fourth
channels.

Import the clips into a P2 project containing
a sequence with a 5.1 master track.

In the Project panel, select the clip or clips you want
to map.

Select Clip > Modify > Audio Channels.

Under Track Format, click 5.1.

If necessary, click the 5.1 channel icons until they
map the four source channels in this way:

Ch. 1 to Left-Front Channel.

Ch. 2 to Right-Front Channel.

Ch. 3 to Left-Rear Channel.

Ch. 4 to Right-Rear Channel.

Click OK.

Map sequence audio channels to
audio output device hardware channels

You can specify the channel in a target hardware
audio device for each channel in a sequence Master track. You map
channels in the Audio Output Mapping pane of the Preferences dialog
box. Premiere Pro plays each sequence channel through the hardware
channel you specify. For example, your project could have a 5.1-channel
sequence, but your system hardware might support only two channels.
You could specify which of the two hardware channels carries each
of the six sequence channels.

16-channel sequences, however,
remain mapped to 16 output channels if the selected hardware device
has fewer than 16 channels. For example, the selected device could
have only two channels. You could then map only the first two channels
of a 16-channel sequence to the two hardware channels.

ملاحظة:

In the Audio Output Mapping pane, you can map sequence channels to any supported hardware device installed in your computer, not only the device currently activated. However, you see and hear the channel mapping you specify for a device only when the device is activated. Mapping sequence audio channels to the device does not activate the device. To activate an audio hardware device, select it in Audio Hardware preferences. For more information, see Specify ASIO device settings (Windows only).

To map sequence channels
for a hardware device, you first select the device in the Map Output
For menu. The list below the Map Output For menu shows the hardware
channels supported by the device chosen. You then map sequence channels
to each hardware channel using channel tiles.

For example,
if you choose a third-party 16-channel audio device, the list shows 16
hardware channels. If you choose a stereo device, the list shows
only two hardware channels. Tiles to the right of each channel name
in the list represent the three types of sequence channels you can
map to that hardware channel: stereo, 5.1, and 16-channel.

By
default, Premiere Pro selects Premiere Pro WDM Sound (Windows),
or Built-In (Mac OS) as the device. However, if your computer has
a supported third-party audio device installed, it appears in the
Map Output For menu. Select the third-party device to make its supported
channels appear in the list.

From the Map Output For menu in the Audio Hardware tab, choose the driver for the device desired. By default, Premiere Pro selects Desktop Audio (Windows) or Built-In (Mac OS).

Drag the desired sequence channel tile into line with
the desired hardware channel in the list.

Click OK.

Extract audio from clips

You can extract audio from clips and generate
new audio master clips in a project. The original master clips are
preserved. Any source channel mappings, gain, speed, duration, and
interpret footage adjustments in the original master clips are applied
to the new, extracted audio clips.

In the Project panel, select one or more clips
containing audio.

Choose Clip > Audio Options > Extract Audio.

Premiere Pro generates new audio files containing the extracted
audio, with the word “Extracted” added to the end of the filenames.

Break a stereo track into mono
tracks

The Breakout To Mono command creates mono
audio master clips from a clip’s stereo or 5.1 surround audio channels.
Breaking out a stereo clip results in two mono audio master clips—one
for each channel. Breaking out a 5.1 surround clip results in six
mono audio master clips—again, one for each channel. Premiere Pro preserves
the original master clip. The Breakout To Mono command does not create
new files, only new master clips with appropriate source channel mapping.

In the Project panel, select a clip containing
stereo or 5.1 surround audio.

Choose Clip > Audio Options > Breakout To Mono.

The resulting audio master clips are given filenames reflecting
the name of the original clip, followed by the channel names. For
example, when Premiere Pro creates two audio master clips from a
stereo audio clip named Zoom, it names them Zoom Left and Zoom Right.

ملاحظة:

The Breakout To Mono command does not create linked
clips. To create mono clips that are linked, use the Source Channel
Mappings command.

ملاحظة:

The Breakout To Mono command works
on items in the Project panel, not on clips in a sequence in the
Timeline panel.

In the Source Channel Mapping area, choose Mono from the Stereo Media menu.

Click OK.

Use a mono clip as stereo

You may sometimes find it useful to use a
mono audio clip as a stereo clip. Using the Modify Clip dialog box,
you can apply a mono clip to a pair of left and right stereo channels.

In the Project panel, select a mono clip.

Choose Clip > Modify > Audio Channels.

In the Modify Clip dialog box, select Mono As Stereo,
and then click OK.

ملاحظة:

You can apply the Modify Clip command
to a mono clip only in the Project panel, before the clip appears
in a Timeline panel. You can’t convert a clip instance to stereo
when it’s used in a mono audio track.

Placing sound from one channel
of a stereo clip into both channels

If you have a stereo clip with sound recorded in only
one channel, or if you have a stereo clip that has sound in one
channel that you want to replace with the sound from the other channel,
you can use source clip channel mapping, the Fill Left audio filter,
or the Fill Right audio filter.

Linking multiple audio clips

You can link one video clip to multiple audio clips
and you can link multiple audio clips together. When you link audio
clips in a sequence, you link only the instances of the master clips.
The original master audio clips in the Project panel are untouched.

Linked clips remain synchronized as you move them or trim them
in a Timeline panel. You can apply audio effects, including Volume
and Panning effects, to all channels in the linked clips. If you
make an edit that moves one of the linked clips without moving the
others, out-of-sync indicators appear.

You can display and trim a multi-clip link in the Source Monitor. You can view and play only one channel at a time in the Source Monitor. If the linked clips contain markers, the Source Monitor timeline displays markers only for the displayed track. If the Source Monitor displays a multi-clip link from the Project panel, you can use the Overwrite or Insert buttons to add the linked clips to separate tracks in a Timeline panel.

The Effect Controls panel displays all the video and audio tracks
in a multi-clip link with the applied effects grouped together by
track. You can apply effects from the Effects panel to a specific
group in the Effect Controls panel.

Link audio clips

The audio clips must have the same channel
type and each clip must be on a different track. If clips are already
linked, such as an audio clip linked to a video clip, they must
be unlinked before you can create a multi-clip link.

Shift-click to select each audio clip on
separate tracks in a Timeline panel. You may also shift-click to
select a video clip.

Shift-click to select more than one audio clip on
separate tracks in a Timeline panel.

All audio clips must have the same track format (mono,
stereo, or 5.1 surround).

Choose Clip > Link.

Edit a multi-clip link in the Source
Monitor

In a Timeline panel, double-click a
linked clip.

Choose a track from the Track menu to display a specific
channel.

(Optional) Specify the In and Out points for a track.

Specifying the In and Out points for a specific track
applies the same amount of trimming to the In and Out points of
the other linked tracks. The In and Out points of linked tracks
with different durations will be different. The In and Out points
of linked clips are the same only if they have identical durations.